Genesis flyer "chain tensioner" bolt size

hopefully someone here can help. A while ago, I buckled the bolts that adjusts the axle distance in the rear dropouts. I emailed genesis to confirm size who said it was M4, so I ordered a couple of stainless steel replacements.

They arrived this morning, visually they look correct, but wont screw in. on the head it says A4. so my questions are>

does an A4 thread exist? if so, what is the difference between M4 and A4 for example? (the 4 obviously = 4mm dia)

If there is no difference, does anyone know the size I need?

cheers!
:)

No LBS near you?

Redeye, did you ever resolve this? I need some replacement bolts for my Flyer!

The easiest thing to do is to take the old and new bolts to a hardware shop and they'll tell you if they're the same/sell you the right ones.

BTW Markings on the head like A2 and 8.8 are the kind of steel.

FTW:

All of the Kryptonite U-Lock plastic bike mounts for your bike use the a2 M4 head that fits perfectly in your chain tensioner setup. Each lock mount has 2. One on the top and one in the middle. Enjoy.

Oh BTW you obviously need to already own one or get hold of a lock mount which most people will be more than eager to just give you for free.

hopefully someone here can help. A while ago, I buckled the bolts that adjusts the axle distance in the rear dropouts. I emailed genesis to confirm size who said it was M4, so I ordered a couple of stainless steel replacements.

They arrived this morning, visually they look correct, but wont screw in. on the head it says A4. so my questions are>

does an A4 thread exist? if so, what is the difference between M4 and A4 for example? (the 4 obviously = 4mm dia)

If there is no difference, does anyone know the size I need?

cheers!
:)

A2 is referring to the A- Allen Head screw size. Peace. Ride hard.

BTW Markings on the head like A2 and 8.8 are the kind of steel.

Nope A-Allen head like your multi-tool set.

Yeah I know Resurrected a post from 2007. But it was worth mentioning.